rei-skills
The engineering-grade skill layer for AI agents. 895 validated skills, 21 AI adapters, workflows & REI Reverse Engineering (REA) for Claude, Codex, Cursor & Copilot.
Install / Use
claude mcp add rootcastleco -- npx -y github:rootcastleco/rei-skillsIf the server publishes to npm under a different name, use that package instead — check the repo README.
MCP Server
Model Context Protocol server
Quality Score
Category
AutomationSupported Platforms
Our assessment of rei-skills
rei-skills scores 46/100 on our quality scale, 2790th of 2,873 Automation skills we index.
Its MCP Server is 2.6 KB long, written without headings and no code examples: a solid amount of guidance for an agent.
It has no GitHub stars yet, so there is no community track record; judge it on its content.
Maintenance, license and trust
- We could not determine when the repository was last updated.
- No license is declared. By default that means all rights are reserved: you can read it, but reusing or redistributing it is not clearly permitted. Ask the author before building on it commercially.
- Its trust signals score 68/100, with 3 cautions from licensing, adoption, age or documentation. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.
rei-skills compared with similar skills
All 4 of these similar skills score higher than rei-skills; compare them before choosing.
| Skill | Score | Stars | Updated | Format |
|---|---|---|---|---|
| rei-skills (this skill)by rootcastleco | 46 | 0 | — | MCP Server |
| Agent-Reachby Panniantong | 100 | 108.0k | 1d ago | CLAUDE.md |
| headroomby headroomlabs-ai | 100 | 78.7k | today | CLAUDE.md |
| CowAgentby zhayujie | 100 | 47.8k | today | CLAUDE.md |
| Scraplingby D4Vinci | 100 | 92.8k | today | MCP Server |
Frequently asked questions
- How do I install rei-skills?
- Run
claude mcp add rootcastleco -- npx -y github:rootcastleco/rei-skills. The install tabs above show the steps for each supported agent. - Which AI agents does rei-skills work with?
- It is written for Claude Code and Claude Desktop, as a MCP Server file. Other agents that read the same format can often use it too.
- Is rei-skills safe to use?
- It declares no license and scores 68/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
- Is rei-skills still maintained?
- We could not determine when the repository was last updated.
Skill content
View source on GitHub{ "name": "rei-skills", "version": "6.2.0", "description": "The universal engineering-grade skill layer & Smart MCP Server for AI agents. 895 validated skills, 21 AI adapters, workflows & REI Reverse Engineering (REA).", "author": "Rootcastle Engineering & Innovation admin@rootcastle.com (https://rootcastle.com)", "homepage": "https://rootcastleco.github.io/rei-skills/", "license": "MIT", "scripts": { "validate": "python scripts/validate_skills.py", "validate:strict": "python scripts/validate_skills.py --strict --report data/quality-report.json", "validate:node": "node scripts/validate-skills.js", "validate:refs": "python scripts/validate_references.py", "index": "python scripts/generate_index.py", "readme": "python scripts/update_readme.py", "catalog": "node scripts/build-catalog.js", "doc-site": "node scripts/build-doc-site.js", "chain": "npm run validate:strict && npm run validate:node && npm run index && npm run catalog && npm run readme && npm run doc-site && npm run validate:refs", "build": "npm run chain", "test": "node scripts/tests/validate_skills_headings.test.js && python scripts/tests/test_validate_skills_headings.py && node scripts/tests/installer.test.js", "test:network": "python scripts/tests/inspect_microsoft_repo.py && python scripts/tests/test_comprehensive_coverage.py", "brand": "node scripts/brand_skills.js", "security-audit": "node scripts/security_audit.js", "mcp": "node bin/mcp-server.js", "sync:rea": "python scripts/sync_rei_rea.py --sync", "check:rea": "python scripts/sync_rei_rea.py --check", "sync:microsoft": "python scripts/sync_microsoft_skills.py", "sync:all-official": "npm run sync:rea && npm run sync:microsoft && npm run build" }, "devDependencies": { "yaml": "^2.8.2" }, "repository": { "type": "git", "url": "git+https://github.com/rootcastleco/rei-skills.git" }, "bugs": { "url": "https://github.com/rootcastleco/rei-skills/issues" }, "bin": { "rei-skills": "bin/install.js", "rei-skills-mcp": "bin/mcp-server.js" }, "files": [ "bin", "lib", "data/rei-rea-manifest.json" ], "keywords": [ "rei-skills", "rootcastle", "ai-agents", "agent-skills", "claude-code", "codex", "gemini-cli", "cursor", "github-copilot", "windsurf", "antigravity", "opencode", "mcp", "mcp-server", "model-context-protocol", "reverse-engineering", "binary-analysis", "digital-forensics", "cybersecurity", "firmware-analysis", "developer-tools" ] }
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Trust signals
From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.